forked from amazingfate/loongoffice
462d85709e
To more directly support an additional alpha channel for BitmapPrimitive data I have done some deeper changes to the primitive stack, in a compatible way. Quite some more graphic types and primitives now support an additional direct alpha value. All that is decomposed/created/broken down in a way that needs no changes for existing renderers, in already described ways. The CairoPixelProcessor2D already uses this in the processFillGraphicPrimitive2D implementation and thus in the FillGraphicPrimitive2D. This works since primitive productions now all try to create that FillGraphicPrimitive2D type including an additional alpha value - if possible and necessary. Change-Id: Ib1b16491a2b3aee16f14cc8196e28af30a7cf9be Reviewed-on: https://gerrit.libreoffice.org/c/core/+/170900 Reviewed-by: Armin Le Grand <Armin.Le.Grand@me.com> Tested-by: Jenkins
99 lines
4.4 KiB
C++
99 lines
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_DRAWINGLAYER_PROCESSOR2D_HITTESTPROCESSOR2D_HXX
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#define INCLUDED_DRAWINGLAYER_PROCESSOR2D_HITTESTPROCESSOR2D_HXX
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#include <drawinglayer/drawinglayerdllapi.h>
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#include <drawinglayer/primitive2d/Primitive2DContainer.hxx>
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#include <drawinglayer/processor2d/baseprocessor2d.hxx>
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namespace basegfx { class B2DPolygon; }
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namespace basegfx { class B2DPolyPolygon; }
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namespace drawinglayer::primitive2d { class ScenePrimitive2D; }
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class BitmapEx;
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namespace drawinglayer::processor2d
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{
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/** HitTestProcessor2D class
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This processor implements a HitTest with the fed primitives,
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given tolerance and extras
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*/
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class DRAWINGLAYER_DLLPUBLIC HitTestProcessor2D final : public BaseProcessor2D
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{
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private:
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/// discrete HitTest position
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basegfx::B2DPoint maDiscreteHitPosition;
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/// discrete HitTolerance
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basegfx::B2DVector maDiscreteHitTolerancePerAxis;
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/// stack of HitPrimitives, taken care of during HitTest run
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primitive2d::Primitive2DContainer maHitStack;
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/// flag if HitStack shall be collected as part of the result, default is false
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bool mbCollectHitStack : 1;
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/// Boolean to flag if a hit was found. If yes, fast exit is taken
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bool mbHit : 1;
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/// flag to concentrate on text hits only
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bool mbHitTextOnly : 1;
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/// tooling methods
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void processBasePrimitive2D(const primitive2d::BasePrimitive2D& rCandidate) override;
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bool checkHairlineHitWithTolerance(
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const basegfx::B2DPolygon& rPolygon,
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const basegfx::B2DVector& rDiscreteHitTolerancePerAxis) const;
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bool checkFillHitWithTolerance(
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const basegfx::B2DPolyPolygon& rPolyPolygon,
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const basegfx::B2DVector& rDiscreteHitTolerancePerAxis) const;
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void check3DHit(const primitive2d::ScenePrimitive2D& rCandidate);
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void checkBitmapHit(basegfx::B2DRange aRange, const BitmapEx& rBitmapEx, const basegfx::B2DHomMatrix& rTransform);
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public:
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HitTestProcessor2D(
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const geometry::ViewInformation2D& rViewInformation,
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const basegfx::B2DPoint& rLogicHitPosition,
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const basegfx::B2DVector& rLogicHitTolerancePerAxis,
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bool bHitTextOnly);
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virtual ~HitTestProcessor2D() override;
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/// switch on collecting primitives for a found hit on maHitStack, default is off
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void collectHitStack(bool bCollect) { mbCollectHitStack = bCollect; }
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/// get HitStack of primitives, first is the one that created the hit, last is the
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/// top-most
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const primitive2d::Primitive2DContainer& getHitStack() const { return maHitStack; }
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/// data read access
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const basegfx::B2DPoint& getDiscreteHitPosition() const { return maDiscreteHitPosition; }
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const basegfx::B2DVector& getDiscreteHitTolerance() const { return maDiscreteHitTolerancePerAxis; }
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bool getCollectHitStack() const { return mbCollectHitStack; }
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bool getHit() const { return mbHit; }
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bool getHitTextOnly() const { return mbHitTextOnly; }
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};
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} // end of namespace drawinglayer::processor2d
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#endif // INCLUDED_DRAWINGLAYER_PROCESSOR2D_HITTESTPROCESSOR2D_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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